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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 336 days






2. Parturition is controlled by...






3. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






4. What helps regulate spermatogenesis?






5. Important 'landmark' during palpation






6. Start of the reproductive tract for the female. located outside of the body






7. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






8. 26 hours after estrus begins






9. Birthing process (termination of gestation)






10. Way to know everything is alright with the breeding male






11. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






12. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






13. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






14. (male) pushes the testes outward toward the legs for a cool-down off of the body






15. Animal which has been castrated after puberty






16. (male) pushes the testes outward toward the legs for a cool-down off of the body






17. Check feet and legs - look for masculine traits in build such as crest and muscling






18. Sperm production






19. To remove/separate testicles from animal's body before animal reaches puberty






20. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






21. Urinary calculi.






22. Luteolysis happens because of the ____________ hormone






23. Duct through penis that carries sperm and urine






24. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






25. 19-23 (21) days






26. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






27. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






28. Superior genes are _______ to multiply






29. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






30. Why does estrus happen before ovulation?






31. (LH) stimulates the Leydig cells to produce testosterone






32. Why Dairy calves are fed powdered milk.






33. Microscopic - make sure not sterile - very few bulls are actually tested






34. Superior genes are _______ to multiply






35. Contains and regulates the temp of the testes for sperm production






36. Why Dairy calves are fed powdered milk.






37. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






38. The more stressed out the male is - the less sperm he is going to produce






39. 265-285 days






40. What makes the milk flow through the mammary glands?






41. Prevent the cow from getting an infection from the calve






42. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






43. Male on one pin and female on other side






44. 1-3 days






45. What helps regulate spermatogenesis?






46. Animals which have many estrous periods per year (ex: cow - sow)






47. When are steers and heifers weaned from bottle feeding?






48. ~60 days before calving






49. 14-19 (17) days






50. 147 days